One of my biggest annoyances for a while has been the lack of interest in IPv6 in the UK. There just isn't a thirst for it. I'm pretty convinced it's down to lack of sales support by out coin operated fraternity of technology touting army of salesmen (and women). Justifications like "IPv4 is running out" and "IPv6 when wielded correctly gives us huge growth potential" just … [Read more...]

Global Multicast Addressing: IPv4 and IPv6
This is a short post covering globally unique multicast IP addresses for both IPv4 and IPv6; this does not cover IGMP, MLD, PIM, BGP-MP, MSDP or any other MC technology other than global addressing. Whole books are dedicated to multicast so I’ll try and keep this focussed!
Multicast is often misunderstood and can … [Read more...]